2026 ICD-10-CM Diagnosis Code C84.7AAnaplastic large cell lymphoma, ALK-negative, breast

ICD-10-CM Codes›C00–D49›C81-C96›C84

ICD-10-CM C84.7A
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

C84.7A is a billable ICD-10-CM diagnosis code for anaplastic large cell lymphoma, ALK-negative, breast. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 820 through 825, 840 through 842, 974 through 976. Coders also document this condition as anaplastic large cell lymphoma, ALK negative. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Non-Hodgkin lymphoma.

Code Identity

ICD-10-CM Code
C84.7A
Billable Status
Yes — Valid for Submission
Code Describes
Anaplastic large cell lymphoma, ALK-negative, breast
Short Description
Anaplastic large cell lymphoma, ALK-negative, breast
Same as the full description in the CMS dataset.
Parent Code
C84.7
Anaplastic large cell lymphoma, ALK-negative

Code Classification

ChapterC00–D49Neoplasms
SectionC81-C96Malignant neoplasms of lymphoid, hematopoietic and related tissue
CategoryC84Mature T/NK-cell lymphomas
This CodeC84.7AAnaplastic large cell lymphoma, ALK-negative, breast

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anaplastic large cell lymphoma, ALK negative
  • Breast implant-associated anaplastic large-cell lymphoma
  • Large cell anaplastic lymphoma T cell and null cell type

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Breast implant associated anaplastic large cell lymphoma (BIA-ALCL)

Use Additional Code

  • code to identify:
  • breast implant status Z98.82
  • personal history of breast implant removal Z98.86

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Lymphoma(of) (malignant)
      • anaplastic large cell
        • breast implant associated (BIA-ALCL)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO058
Non-Hodgkin lymphoma
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Lymphoma

Lymphoma is a cancer of a part of the immune system called the lymph system. There are many types of lymphoma. One type is Hodgkin disease. The rest are called non-Hodgkin lymphomas.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code History & ChangesHistory

Replacement C84.7A replaces the following previously assigned code(s):

  • C84.79 - Anaplstc lg cell lymph, ALK-neg, extrnod and solid org sites
FY 2022AddedAdded to the ICD-10-CM code setEffective October 1, 2021.
FY 2023–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About C84.7AOverview

Is C84.7A (Anaplastic large cell lymphoma, ALK-negative) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report anaplastic large cell lymphoma, ALK-negative, breast on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does C84.7A group to?

When anaplastic large cell lymphoma, ALK-negative, breast is the principal diagnosis on an inpatient stay, it groups to MS-DRG 820, 821, 822, 823, 824, 825, 840, 841, 842, 974, 975, 976, with relative weights from 0.8945 to 5.8648 depending on complications. Higher weights mean higher Medicare reimbursement.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.